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More than 1 million people will be displaced from low-lying areas along Bangladesh’s southern coast as sea levels rise, experts predict, although encroaching waters have already forced thousands to uproot permanently from their seaside homes.
Bangladesh is especially susceptible to sea-level rise because it is a low-lying country crisscrossed with rivers and already experiences frequent flooding during the summer monsoon season, a new study by the American Geophysical Union said. The study, based on mathematical models, predicts that 1.3 million people will be displaced by the year 2050.
“According to the new model, the districts in the south along the Bay of Bengal will be the first to be impacted by sea-level rise, causing a migration that will ripple across the country and affect all 64 districts. Some migrants will likely be rejected by the existing residents – or displace them – triggering further migrations,” said the report published in lat
Reuters
Published: 06 May 2021 10:26 AM BdST
Updated: 06 May 2021 10:26 AM BdST FILE PHOTO: An iceberg floats in a fjord near the town of Tasiilaq, Greenland, June 24, 2018. REUTERS/Lucas Jackson/File Photo
Antarctic melting could cause a dramatic rise in sea levels if countries fail to keep global warming below 2 degrees Celsius (3.6 Fahrenheit), posing a serious threat to low-lying and coastal regions, researchers said on Wednesday. );
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If the upper temperature goal set in the Paris Agreement is exceeded, the melting Antarctic ice sheet could cause annual average sea-level rise of 0.07 inches (0.18 cm) globally in 2060 and beyond, said the study published in the journal Nature.
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IMAGE: Susan L. Brantley, Distinguished Professor of Geosciences and director of the Earth Environmental Systems Institute at Penn State view more
Credit: Penn State
Susan L. Brantley, distinguished professor of geosciences and director of the Earth Environmental Systems Institute at Penn State, has been elected a member of the American Academy of Arts and Sciences. The 2021 class of members contains 252 new members who join the more than 13,500 members who have been elected since the Academy was founded in 1780 by the country s founders.
One of the nation s most prestigious honorary societies, the American Academy of Arts and Sciences is a leading center for independent and interdisciplinary policy research. Members contribute to Academy publications and studies of science and technology policy; global security and international affairs; social policy and American institutions; and the humanities, arts and education.
Protecting densely populated coastal areas, such as river deltas or megacities, from sea-level rise with dikes and seawalls will likely limit land loss and migration of people away from the coasts. But these protections are overlooked in most migration estimates. A new study predicts coastal protection could limit migration to 17 to 72 million people during the 21st century-less than half of some previous estimates.
The study, published in Earth’s Future, AGU’s journal for interdisciplinary research on the past, present and future of our planet and its inhabitants, is the first to look at the effects of coastal protection on migration rates on a global scale. The analysis takes into account a wide range of climate change and economic scenarios.